Radial cleavage - metazoa, Biology

Assignment Help:

Radial cleavage - Metazoa

Radial cleavage produces tiers or layers of cells one on top of another. Radial cleavage is also said to be indeterminate or regulative because each of the blastomeres of the early embryo, if separated from the other, can regulate its development and form a complete well proportioned embryo. This happens because the blastomeres are equipotent; their final fate is not yet determined and there is no definite relation between the position of early blastomeres and specific tissue it will form in the embryo (hence indeterminate). This type of cleavage is found in some cnidarianes, echinoderms and all chordates.

1560_Radial cleavage - Metazoa.png

Figure: Radial cleavage shown at 4, 8 and 16 cell stage


Related Discussions:- Radial cleavage - metazoa

What are the synthetic auxins and what are their uses, What are the synthet...

What are the synthetic auxins and what are their uses? The Synthetic auxins like naphthalenic acid (NAA) and indolebutyric acid (IBA) are substances similar to IAA (a natural a

What are the types of reproduction that occur in fungi, What are the types ...

What are the types of reproduction that occur in fungi? In fungi there are asexual and sexual reproduction. Fungi replicate asexually by fragmentation, gemmation and sporulatio

Endothelium - ovule, Endothelium - Ovule In plants bearing unitegmic o...

Endothelium - Ovule In plants bearing unitegmic ovules, the nucellus degenerates during early stages of ovule development and the embryo sac comes in contact with the innermos

Identical twins, Identical Twins Human twins may be similar, when they...

Identical Twins Human twins may be similar, when they are formed from one egg (monozygotic) or fraternal while they are the result of fertilization of two different ova releas

Help, A climate classification system divides regions according to _____?

A climate classification system divides regions according to _____?

Unicellular organisms, How was it proved in the case of Amoeba that the key...

How was it proved in the case of Amoeba that the key to the life of a cell is Nucleus?

Define oxidised starch, Oxidised starch Oxidised starch finds a number ...

Oxidised starch Oxidised starch finds a number of uses in the food industry where a neutral tasting, low viscosity 'body builder' is required as in lemon curd manufacture, in s

Signify the difference between bryophytes and tracheophytes, Which of the b...

Which of the below determines the major difference between bryophytes (pron: bry-oh-fites) and tracheophytes (pron: tray-key-o-fites)? a) Tracheophytes can make their own food

Show major groups into which mammals are divided, Q What are the three majo...

Q What are the three major groups into which mammals are divided? The three groups into which mammals are divided are: monotremes (or prototherian that is platypus), placental

Explain the potassium conductance, In a neuron at rest, the membrane A....

In a neuron at rest, the membrane A. voltage will be less than zero. B. sodium conductance is greater than the membrane potassium conductance. C. voltage is less than the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd